Owner's Manual

M7
WWW.MEMPHISCARAUDIO.COM
UNITS M71024 1Ω M71012 2Ω M71212 1Ω M71212 2Ω M71512 1Ω M71512 2Ω
THIELSE SMALL PARAMETERS
Resonant Frequency (fs) Hz
35 35 33 33 28 28
Mechanical Q (Qms)
5.89 5.8 7.22 7.16 7.22 7.16
Electrical Q (Qes)
0.55 0.46 0.64 0.54 0.83 0.7
Total Q (Qts)
0.503 0.426 0.588 0.502 0.74 0.638
Sensitivity dB
83.1 83.9 84.5 85.3 86.1 86.8
Xmax Linear in.
0.6 0.6 0.6 0.6 0.6 0.6
Displacement cf.
0.2 0.2 0.3 0.3 0.5 0.5
Air volume of suspension (Vas) cf.
0.625 0.631 1.219 1.219 3.6 3.617
Moving Mass (Mms) g
195.6 195.6 227.2 227.2 344.7 344.7
Suspension Compliance (Cms) mmN
0.107 0.108 0.102 0.102 0.095 0.095
Effective piston area (Sd) SqCm
343.23 343.23 490.84 490.84 879.13 876.13
Motor Strength (Bl) TM
8.84 13.27 8.56 12.83 8.67 13.07
VOICE COIL & MAGNET
Impedance ohms
1 2 1 2 1 2
DCR ohms
1 1.92 1 1.9 1 1.98
Voice coil diameter in.
2.5 2.5 2.5 2.5 2.5 2.5
RMS Power Watts
750 750 750 750 750 750
Peak Power Watts
1500 1500 1500 1500 1500 1500
Magnet weight oz
120 120 120 120 120 120
Magnet diameter in.
6.7 6.7 6.7 6.7 6.7 6.7
PHYSICAL DIMENSIONS
Mounting depth in.
6.87 6.87 7.48 7.48 8.385 8.385
Cutout Diameter in.
9.25 9.25 10.79 10.79 14.05 14.05
Frame Outside Diameter in.
10.9 10.9 12.77 12.77 15.75 15.75
ENCLOSURE RECOMMENDATIONS *GROSS VOLUME
Single Sub Sealed cf.
0.7 0.7 1.5 1.5 2.6 2.6
Dual Subs Sealed cf.
1.3 1.3 2.7 2.7 5 5
Single Sub Vented cf.
1.6 1.6 2.5 2.5 4.4 4.4
Port Dimensions in.
4" x 3" x 20"L 4" x 3" x 20"L 5" x 5" x 27"L 5" x 5" x 27"L 7" x 6" x 28"L 7" x 6" x 28"L
Tuning Frequency Hz
37 37 36 36 34 34
Dual Sub Vented cf.
2.8 2.8 4.6 4.6 8.5 8.5
Port Dimensions in.
5" x 5" x 22"L 5" x 5" x 22"L 7" x 6" x 23"L 7" x 6" x 23"L 9" x 9" x 22"L 9" x 9" x 22"L
Tuning Frequency Hz
37 37 36 36 34 34
M7 SUBWOOFER SPECS